US3339192A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means to compensate for deviation between record and playback speed
Assignee: QUANTA SYSTEMS Corp A CO CORP
•
Filing: 1963-09-05
•
Granted: 1967-08-29
•
Expires: 1983-09-05
Abstract
No abstract record available.
Inventors
- 👤 Jr David A Zeller
- 👤 Raymond A Runyan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:18
CPC Classifications
G; G11; G11B; G11B20/00; G11B20/22; G11B20/225; G11B20/02; G11B20/08; G11B5/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
IN A SYSTEM FOR CONVERTING A CONSTANT WIDTH PULSE TRAIN INFORMATION SIGNAL TO A VARYING D.C. INFORMATION SIGNAL, AN ERROR SIGNAL BEING DERIVED IN SAID SYSTEM TO REPRESENT MODULATION ERROR, THE IMPROVEMET COMPRISING: A SWITCH, MEANS FOR APPLYING A PREDETERMINED VOLTAGE TO A FIRST SIDE OF SAID SWITCH, THE ABSOLUTE MAGNITUDE OF SAID PREDETERMINED VOLTAGE BEING LESS THAN THE PEAK TO PEAK VOLTAGE OF THE PULSES IN SAID PULSE TRAIN, MEANS CONTROLLED BY SAID ERROR SIGNAL TO VARY THE MAGNITUDE OF SAID PEREDETERMINED VOLTAE AS A FUNCTION OF THE MAGNITUDE OF SAID ERROR SIGNAL, AND MEANS FOR COUPLING SAID PULSE TRAIN TO THE SECOD SIDE OF SAID SWITCH TO PROVIDE A MODIFIED PULSE TRAIN AT SAID SECOND SIDE OF SAID SWITCH, WHEREBY THE PULSES OF SAID MODIFIED PULSE TRAIN HAVE AN AMPLITUDE THAT IS DETERMINED BY SAID ERROR SIGNAL.
Claim 2
Dependent Claim
139 words
IN A SYSTEM FOR CONVERTING A CONSTANT WIDTH PULSE TRAIN INFORMATION SIGNAL TO A VARYING D.C. INFORMATION SIGNAL, AN ERROR SIGNAL BEING DERIVED IN SAID SYSTEM TO REPRESENT MODULATION ERROR, THE IMPROVEMET COMPRISING: A SWITCH, MEANS FOR APPLYING A PREDETERMINED VOLTAGE TO A FIRST SIDE OF SAID SWITCH, THE ABSOLUTE MAGNITUDE OF SAID PREDETERMINED VOLTAGE BEING LESS THAN THE PEAK TO PEAK VOLTAGE OF THE PULSES IN SAID PULSE TRAIN, MEANS CONTROLLED BY SAID ERROR SIGNAL TO VARY THE MAGNITUDE OF SAID PEREDETERMINED VOLTAE AS A FUNCTION OF THE MAGNITUDE OF SAID ERROR SIGNAL, AND MEANS FOR COUPLING SAID PULSE TRAIN TO THE SECOD SIDE OF SAID SWITCH TO PROVIDE A MODIFIED PULSE TRAIN AT SAID SECOND SIDE OF SAID SWITCH, WHEREBY THE PULSES OF SAID MODIFIED PULSE TRAIN HAVE AN AMPLITUDE THAT IS DETERMINED BY SAID ERROR SIGNAL.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-28 | 1971-02-27 | 1971-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-28 | 1975-02-27 | 1975-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-28 | 1979-02-27 | 1979-08-29 | $7700.00 | Window Closed / Lapsed |